AC Tech Drive Repair

AC Tech Drive Repair

Should I Repair Or Replace My Drive?

Cost and Production Loss

AC Tech drive repair can be quicker and less expensive than drive replacement. AC Tech drive repair is most economical for: obsoletedrives, out of stock drives, and, drives above 10 horsepower. When a failed AC Tech drive is obsolete or the availability exceeds repair time, AC Tech drive repair can be a better solution than replacement.

AC Tech drives below 10 horsepower typically fail in eight years from their initial installation date.AC Tech drivesbelow 10 horsepower are more often replaced than repaired because the cost of repair will exceed the cost of replacement. AC Tech drives above 10 horsepower have a longer life span, and, are more often repaired than replaced, because the cost of repair is less expensive than the cost of replacement. Depending on the cause of failure, an AC Tech drive repair can cost anywhere from 40%-75% less than the replacement cost.

There are special circumstances that would allow a maintenance technician to choose AC Tech drive repair instead of replacement, regardless of the drive cost. For example: If a crucial production line is down due to AC Tech drive failure, a maintenance technician would look at their options: 1.) AC Tech drive replacement or 2.) AC Tech drive repair. If the AC Tech product needed is not in stock and the lead time is several weeks, the quicker solution would be AC Tech drive repair. The cost of the repair in these situations would first depend on the cost of downtime. If the downtime in production loss exceeds the drive repair time, the maintenance tech would go with the drive repair.

PM Programs

AC Tech drive repair PM programs for larger (above 10hp) AC Tech drives, can prevent severe damage to AC Tech drives. Severely damaged drive repair can cost more than drive replacement, depending on the extent of board and component damage. Preventative maintenance consists of cleanup or replacement of circuit boards and all other electrical components – Followed by 100% component test and final test run with motor; PM programs are typically scheduled out once or twice a year – onsite, when necessary.

AC Tech Drive Repair– Where Should I Send My Drive?

AC Tech drive repairis an asset to manufacturers, but choosing the right source is crucial. If the manufacturer chooses the wrong repair vendor, the mfg. could end up 1.) paying too much, 2.) waiting too long, or, 3.) paying a repair vendor thats outsourcing the repair to a third party, and marking up the cost. Precision Electric performs AC Tech drive repair every day for electrical repair shops who offer repair services. Precision Electric suggests to all manufacturers: make sure your repair vendor is performing the repair and not outsourcing the repair.

All AC Tech drive repair services are performed in house at Precision Electric. Precision Electric replaces bad components and failed parts with the best available components and parts in the electrical industry. All AC Tech drive repair performed by Precision Electric includes a one year in service warranty. The in service warranty ensures that all repaired equipment will receive an entire year of warranty – the warranty begins the day your equipment is put into service. The in service warranty is especially attractivefor spare drives.

AC Tech Drive Repair – Safety

AC Tech drive repair should be taken with extreme caution andonly be performed by trained technicians. Most AC Tech driveshave an internal DC bus that retains a charge after power has been cut to the drive. An untrained drive user can be injured if theyre unaware that power is still active on the drive. A technician working with variable frequency drives must follow certain steps and take extra precautions during a drive repair – This is to prevent injury or death during the repair.

For AC Tech repair quotes, contact Precision Electric. To learn more about AC Tech drive repair and replacement, contact Precision Electric.

acs880 series products are seen on many different applications, for many different reasons.

ABB ACS880 Multidrives

The three products that make up the ABB acs880 series are:single drives, multidrives, and drive modules.In this article, I will discuss product features and specifications of the ABB acs880 multidrives; which is one-third of the entire acs880 product.

ABB acs880 multidrives

ABB acs880 multidrives are available from 1.5 horsepower to 7,500 horsepower, withpower ranging from 200 / 400/ 600 Volt AC (Alternating Current) to700 Volt AC. The acs880 multidrives are stock products; with the option of built to order customization, to meet every user need. ABB acs880 multidrives come with various types of supply units. The supply units available are diode supply units and regenerative supply units; and these can meet technical challenges through a wide selection of options. A single supply and DC bus arrangement with multiple inverters reduce line power, cabinet size and investment costs.

The ABB acs880 multidrives have built-in safety features to reduce the need for external safety components. The acs880 multidrives support the CODESYS programming environment according to IEC 61131-3. Learn it once, use it everywhere. The ABB acs880 multidrives architecture features the same control panel, parameter menu structure, universal accessories and engineering tools as its predecessor, the acs800.

The acs880 multidrives features and options include extended I/O, fieldbus options, EMC filtering, brake options, fuses and main switch. The new cabinet design is more compact than the acs800, including efficient thermal handling. Several ingress protection (IP) classes with IP22 and IP42 offering cabinet solutions for different environments are also available. Induction motors, synchronous motors and induction servo motors are all supported as standard, without any additional software. The drive can control them in either open loop or closed loop, through its high precision motor control platform, direct torque control (DTC).

The new acs880 control panel is equipped with an intuitive and high-resolution, color control display that enables easy navigation. Many flexible data visualizations including bar charts, histograms and trend graphs help users to analyze processes, with assistants available to simplify setup. The menus and messages are customizable for the specific terminology of different applications. An integrated USB port allows easy connection to the PC tool – Drive composer, which offers fast and harmonized startup, commissioning and monitoring.

The built-in energy calculators, including used and saved kWh, CO2 reduction and money saved, help the user fine-tune processes to ensure optimal energy use. The energy optimizer control mode ensures the maximum torque per ampere, reducing energy drawn from the supply. The ABB acs880 multidrives reduces system size with premium motor control. The ABB acs880 multidrives are used in applications such as: winders, rolling mills, cranes, drilling, processing lines, and many other similar applications.

To learn more about the ABB acs880multidrives, visit the ABB Website. For ABB acs880 multidrives repair or replacement quotes, contact Precision Electric.




ABB ACS250 VFD Now Replaced With ABB ACS255 Series

The ABB ACS250 VFD has reached the end of its life cycle. The new ABB ACS255 VFD will now supersede the ABB ACS250 VFD. ABB will no longer build the ACS250, so once ACS250 stock runs out, ABB will fill all ACS250 orders with the ACS255. These changes were announced in January but ABB ACS250 VFD stock is now diminishing. Fortunately, there is solid availability of the new ABB ACS255 VFD.

The ACS255 VFD has the same price, footprint and dimensions as theABB ACS250 VFD. The only differences are a few internal upgrades to make the product more competitive with similar drives offered by ABB competitors. ACS255 Changes for 120V thru 480V control board:

  • The Advanced parameter menu was added to include:
    • Sensorless vector control of AC induction and permanent magnet synchronous motors
    • BLDC open loop speed control as hidden option (requires factory approval and support)
    • Motor parameter auto-tune
    • Operating mode selection: general, pump, or fan
    • Speed and current parameters for DC injection braking

The ACS255 also features enhanced ground fault detection for full protection against phase to earth faults at start-up (as well as phase to earth and phase to phase faults at enable and on running).An added temperature sensor on the control board gives O-hEAt error message indicating:

  • Ambient is too high in upper section of drive
  • Switching frequency is too high without applying a de-rating factor
  • Drive is not mounted vertically
  • Upgraded control board with higher capacity processor
  • New type codes and MRP numbers

The new part numbers for the ACS255 drives is a very simple change: the 0 in ACS250 changes to a 5. For example: ACS250-01U-04A3-1 is now ACS255-01U-04A3-1…that’s it!

All of the ACS255 changes are internal to the drive or on the nameplate. In fact, unless you go looking for the Advanced parameter menu, the only difference you will notice is the new part number. Most of the accessories will work with both the ABB ACS250 VFD and the ABB ACS255 VFD. The only accessory that wont work on the new ACS255 is the remote control panel (RCRP). ABB has a new remote control panel (RCRP-02) for the ACS255. Please note: the old remote control panel is not compatible with the new drive and the new remote control panel is not compatible with the old drive.

For additional product information, please visit the ABB Website. For ABB VFD replacement or repair, contact Precision Electric.

Lenze AC Tech

Lenze AC Tech Corporation Announces Product Price Increase

Lenze AC Tech Corporation Announces Product Price Increase: Lenze iscommitted toproducing the most innovative products in the industry. Lenze AC Tech Corporationlatest product offerings of the i500 and the g500 are proving to give our customers a competitive edge in their marketplace with their motion control solutions.

Due to lower productionlevels on Lenze phase-out products, Lenze is forced to implement apriceincrease, effectiveMay 1, 2017. The increase will mostly affect some olderLenzedrive models. Please see the chart below for the products impacted. Products not listed will not be involved in the increase.


Price Increase EffectiveMay 1, 2017

Submicro Series (SCM, SCF, SCL, TML)*
Global Drives (82v, 82m, 93s, 93v, ECS)*
Global Drives Series Accessories and Filters
Electromechanical Small Drives (SSN)10.00%
Controls – EL100, X80010.00%
Controls – EPM-H15.00%
Intorq products, brakes, clutches, couplings,belts, pulleys2.0%


*The Sub Micro Series and Global Drives Series have been in the market for over 15 years and are beginning their phase-out.While the phase-out period is two years away, we would like to assist you in your migration process as it is convenient for you. Please contact Precision Electric: 877-625-2402 for any application or migration assistance.